
        .gradient-text {
            background: linear-gradient(135deg, #FFE45C 0%, #FFF9C4 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .glass-effect {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        
        .card-hover {
            transition: all 0.3s ease;
        }
        
        .card-hover:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(255, 228, 92, 0.15);
        }
        
        /* 学习社区卡片特殊样式 - 确保投影一致性 */
        .learning-community-card {
            transition: all 0.3s ease !important;
        }
        
        .learning-community-card:hover {
            transform: translateY(-12px) !important;
            box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.3) !important;
        }
        
        .button-primary {
            background: linear-gradient(135deg, #FFE45C 0%, #FFF9C4 100%);
            color: #222;
            transition: all 0.3s ease;
            border: none;
        }
        
        .button-primary:hover {
            background: #FFE45C;
            color: #111;
            box-shadow: 0 10px 20px rgba(255, 228, 92, 0.3);
            transform: translateY(-2px);
        }
        
        .floating-animation {
            animation: floating 3s ease-in-out infinite;
        }
        
        @keyframes floating {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
        }
        
        .scroll-smooth {
            scroll-behavior: smooth;
        }
        
        .text-shadow {
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }
        .text-theme {
            color: #FFE45C;
        }
        .bg-theme {
            background-color: #FFE45C;
        }
        .border-theme {
            border-color: #FFE45C;
        }
        
        /* 开始探索按钮悬浮效果 */
        .explore-button {
            transition: all 0.3s ease;
            position: relative;
        }
        
        .explore-button .fa-arrow-right {
            transition: transform 0.3s ease;
            display: inline-block;
        }
        
        .explore-button:hover {
            transform: translateX(8px);
        }
        
        .explore-button:hover .fa-arrow-right {
            transform: translateX(4px);
            transition: transform 0.3s ease;
        }
        
        /* AI词条英雄区动画效果 */
        .hero-search-input {
            transition: all 0.3s ease;
        }
        
        .hero-search-input:focus {
            transform: scale(1.02);
            box-shadow: 0 20px 40px rgba(255, 228, 92, 0.15);
        }
        
        .hot-item {
            transition: all 0.3s ease;
        }
        
        .hot-item:hover {
            transform: translateX(8px);
            background-color: #f8fafc !important;
        }
        
        .hero-card {
            animation: slideInUp 0.8s ease-out;
        }
        
        @keyframes slideInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .hero-title {
            animation: fadeInUp 1s ease-out 0.2s both;
        }
        
        .hero-description {
            animation: fadeInUp 1s ease-out 0.4s both;
        }
        
        .hero-search {
            animation: fadeInUp 1s ease-out 0.6s both;
        }
        
        .hero-stats {
            animation: fadeInUp 1s ease-out 0.8s both;
        }
        
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* 固定页脚高度 */
        .footer-fixed-height {
            height: 120px;
            min-height: 120px;
        }
        

    